Melting vitrifiable material with a biomass-type fuel
US-12497322-B2 · Dec 16, 2025 · US
using screw feeders
using screw feeders · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C03B3/005 |
| Official title | {using screw feeders} |
| Display label | using screw feeders |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Submerged feedstock charging of melting vessels
US-2025340474-A1 · Nov 6, 2025 · US
Submerged feedstock charging of melting vessels
US-12371361-B2 · Jul 29, 2025 · US
Feeder alcove and batch feeding apparatus for a melter
US-2025187965-A1 · Jun 12, 2025 · US
Feeder alcove and batch feeding apparats for a melter
US-12252434-B2 · Mar 18, 2025 · US
Batch charger for a melting furnace
US-12054414-B2 · Aug 6, 2024 · US
Furnace control
US-2024092673-A1 · Mar 21, 2024 · US
Methods for melting reactive glasses and glass-ceramics and melting apparatus for the same
US-11878932-B2 · Jan 23, 2024 · US
Method and apparatus for supplying pre-heated particulate mineral material for making a mineral melt
US-11878930-B2 · Jan 23, 2024 · US
Melting furnaces and charging of melting furnaces
US-2024010538-A1 · Jan 11, 2024 · US
Preparation of a raw material composition
US-2023391653-A1 · Dec 7, 2023 · US
Translatably mobile batch charger
US-11787722-B2 · Oct 17, 2023 · US
Method for producing glass article
US-11613487-B2 · Mar 28, 2023 · US
Melting vitrifiable material with a biomass-type fuel
US-2023059556-A1 · Feb 23, 2023 · US
Apparatus and method for forming a glass article
US-11565960-B2 · Jan 31, 2023 · US
Feeder Alcove and Batch Feeding Apparats for a Melter
US-2022411306-A1 · Dec 29, 2022 · US
Methods for melting reactive glasses and glass-ceramics and melting apparatus for the same
US-2022274860-A1 · Sep 1, 2022 · US
Batch charger for a melting furnace
US-2022250960-A1 · Aug 11, 2022 · US
Methods for melting reactive glasses and glass-ceramics and melting apparatus for the same
US-11370685-B2 · Jun 28, 2022 · US
Batch charger for a melting chamber
US-11358895-B2 · Jun 14, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03B3/005?
- CPC C03B3/005 is the Cooperative Patent Classification code for “using screw feeders.”
- How many patents are filed under CPC C03B3/005 (using screw feeders)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC C03B3/005 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).